Novel direct-drive chain tightening device with motor bearing integrated on speed reducer
By integrating the bearing support module and torque module on the reducer, the problems of complex structure and low bearing capacity in the prior art are solved, and the effects of high torque output and long life are achieved, which are suitable for small space applications.
Patent Information
- Application Number
- CN202420629981.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-03-29
AI Technical Summary
The existing high-speed hydraulic motor accelerator and reducer chain tightening device has a complex structure, a small working pressure range and a low overload capacity, which cannot meet the needs of high torque output in small spaces.
Design a new type of motor support direct drive chain tightening device integrated into the reducer, including a reducer, bearing support module, torque module and brake. The bearing support module is fixed by bolt connection and adopts a separate tapered roller bearing and oil seal structure, and is driven The shaft is connected to the torque module to achieve tight mechanical transmission.
It achieves a compact structure, high overload capacity, strong reliability and excellent durability, meets the needs of high torque output in small spaces, extends service life, and has broad application prospects.
Smart Images
Figure CN222277444U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mine scraper transportation, in particular to a direct-drive chain tightening device with a novel motor support integrated in a reducer. Background Art
[0002] The hydraulic chain tightening device is the most important component for the scraper conveyor to maintain normal operation. It is used to tighten the scraper conveyor chain. The hydraulic chain tightening device consists of a hydraulic motor and a reducer. The hydraulic motor provides power, and the reducer reduces the speed and increases the torque to achieve chain tightening. The high-speed hydraulic motor and reducer chain tightening device currently used has the disadvantages of complex high-speed hydraulic motor structure, small working pressure range, large reduction ratio and large size of the reducer, low overload capacity and insufficient durability, and cannot meet the needs of high torque output in a small space.
[0003] The inner curve motor in the chain tightening device of the inner curve hydraulic motor speed reducer has a large working pressure and flow rate. The torque and speed can be adjusted by increasing or decreasing the flow rate and pressure to meet the needs of different customers and working conditions. In addition, the inner curve hydraulic motor has a simple structure and high reliability. Due to fewer parts, this hydraulic motor has a good structure, is very durable and has a longer life. In addition, compared with other types of motors, the inner curve hydraulic motor operates stably in the low speed and low load range. Based on this, it is particularly necessary to design a new type of direct drive chain tightening device with motor support integrated in the speed reducer. Summary of the invention
[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a new direct-drive chain tightening device in which a motor support is integrated in a reducer. The device has a simple structure, a reasonable design, a high overload capacity, meets the needs of high torque output in a small space, is reliable and durable, has a long service life, is highly practical, and is easy to promote and use.
[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a new type of direct-drive chain tightening device with a motor support integrated in a reducer, including a reducer, a bearing support module, a torque module, a distribution module and a brake, the bearing support module is integrated on the reducer, the bearing support module is fixed to the torque module and the distribution module by a first bolt, and the distribution module is connected to the brake by a second bolt; the bearing support module includes a transmission shaft, a bearing support, a first bearing, a first oil seal, a second oil seal, a second bearing, and a retaining ring, the bearing support is installed at the input end of the reducer body, the first bearing and the second bearing are installed in the bearing hole of the bearing support, the first bearing and the second bearing are installed on the transmission shaft, the first oil seal and the second oil seal are installed in the oil seal hole of the bearing support, the retaining ring is installed on the transmission shaft, and the transmission shaft is connected to the torque module.
[0006] Preferably, the first bearing and the second bearing are both split tapered roller bearings, which are installed back to back; the inner and outer rings of the first bearing and the second bearing both have tapered raceways, the outer ring of the first bearing and the outer ring of the second bearing are installed in the bearing hole of the bearing support, and the inner ring of the first bearing and the inner ring of the second bearing are installed on the transmission shaft.
[0007] Preferably, the first oil seal and the second oil seal are respectively installed between the first bearing and the second bearing, the lip of the first oil seal is set toward the reducer for sealing the reducer, and the lip of the second oil seal is set toward the torque module for sealing the hydraulic motor.
[0008] Preferably, the end of the transmission shaft is spline-connected to the rotor of the torque module, and the transmission shaft is used to transmit torque to the reducer.
[0009] The beneficial effects of the utility model are as follows: the device has a compact structure, a high overload bearing capacity, meets the needs of high torque output in a small space, has high reliability, excellent durability, greatly extends the service life, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The utility model is described in detail below with reference to the accompanying drawings and specific implementation methods;
[0011] Figure 1 It is a schematic diagram of the structure of the utility model;
[0012] Figure 2 This is a schematic diagram of the integration of the bearing support module and the reducer of the utility model;
[0013] Figure 3 It is a structural schematic diagram of the bearing support of the utility model. DETAILED DESCRIPTION
[0014] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0015] Reference Figure 1-3 This specific implementation adopts the following technical solution: a new type of direct-drive chain tightening device with a motor support integrated in a reducer, including a reducer 1, a bearing support module 2, a torque module 3, a distribution module 4 and a brake 5, the bearing support module 2 is integrated on the reducer 1, the bearing support module 2 is connected and fixed to the torque module 3 and the distribution module 4 by a first bolt 6, and the distribution module 4 is connected to the brake 5 by a second bolt 7.
[0016] In this specific implementation, the bearing support module 2 is integrated on the reducer 1. The bearing support module 2 serves as the input end of the reducer and also as the output end of the hydraulic motor. The bearing support module 2 is composed of a transmission shaft 2-1, a bearing support 2-2, a first bearing 2-3, a first oil seal 2-4, a second oil seal 2-5, a second bearing 2-6, and a retaining ring 2-7. The bearing support 2-2 is installed at the input end of the reducer body 1-1 of the reducer 1. The first bearing 2-3 and the second bearing 2-6 are installed in the bearing hole of the bearing support 2-2. The first bearing 2-3 and the second bearing 2-6 are both split tapered roller bearings, which are installed back to back to support the rotation of the reducer 1 and the hydraulic motor. The inner and outer rings of the first bearing 2-3 and the second bearing 2-6 have tapered raceways, wherein the outer ring of the first bearing 2-3 and the outer ring of the second bearing 2-6 are installed in the bearing hole of the bearing support 2-2, the inner ring of the first bearing 2-3 and the inner ring of the second bearing 2-6 are installed on the transmission shaft 2-1, and the retaining ring 2-7 is installed on the transmission shaft 2-1. The retaining ring 2-7 is used to control the axial position of the second bearing 2-6.
[0017] The first oil seal 2-4 and the second oil seal 2-5 are installed in the oil seal hole of the bearing support 2-2. The first oil seal 2-4 and the second oil seal 2-5 are located between the first bearing 2-3 and the second bearing 2-6. It is worth noting that the lip of the first oil seal 2-4 is set toward the reducer 1 to seal the reducer, and the lip of the second oil seal 2-5 is set toward the torque module 3 to seal the hydraulic motor.
[0018] In addition, the end of the transmission shaft 2 - 1 is spline-connected to the rotor of the torque module 3 . The transmission shaft 2 - 1 is both the output shaft of the hydraulic motor and the input shaft of the reducer 1 , and is used to transmit torque to the reducer 1 .
[0019] The working principle of this specific embodiment is: when working, the hydraulic oil enters the torque module 3 through the distribution module 4, drives the rotor to rotate, and at the same time the transmission shaft 2-1 rotates, transmitting the torque to the output end of the reducer 1; when the brake 5 is turned on, the brake shaft stops rotating, forcing the rotor to stop rotating, the transmission shaft 2-1 stops rotating, and the reducer 1 has no speed output.
[0020] This specific implementation method integrates the bearing support module on the reducer, which has a more compact structure and small size. The inner curve motor of the chain tightening device has a high overload capacity and can adjust the torque and speed by increasing or decreasing the flow and pressure to meet the needs of different customers and working conditions. The chain tightening device has good chain tightening effect, high flexibility, strong reliability, excellent performance, and a long service life. It meets the needs of high torque output in a small space and has broad market application prospects.
[0021] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A new type of direct drive chain tightening device with motor support integrated in the reducer, characterized in that: The invention comprises a reducer (1), a bearing support module (2), a torque module (3), a flow distribution module (4) and a brake (5); the bearing support module (2) is integrated on the reducer (1); the bearing support module (2) is connected and fixed with the torque module (3) and the flow distribution module (4) by a first bolt (6); the flow distribution module (4) is connected with the brake (5) by a second bolt (7); the bearing support module (2) comprises a transmission shaft (2-1), a bearing support (2-2), a first bearing (2-3), a first oil seal (2-4), a second oil seal (2-5), a Two bearings (2-6) and a retaining ring (2-7), the bearing support (2-2) is installed at the input end of the reducer body (1-1), the first bearing (2-3) and the second bearing (2-6) are installed in the bearing hole of the bearing support (2-2), the first bearing (2-3) and the second bearing (2-6) are installed on the transmission shaft (2-1), the first oil seal (2-4) and the second oil seal (2-5) are installed in the oil seal hole of the bearing support (2-2), the retaining ring (2-7) is installed on the transmission shaft (2-1), and the transmission shaft (2-1) is connected to the torque module (3).
2. According to claim 1, a novel direct-drive chain tightening device with a motor support integrated in a reducer is characterized in that: The first bearing (2-3) and the second bearing (2-6) are both split tapered roller bearings, which are installed back to back. The inner and outer rings of the first bearing (2-3) and the second bearing (2-6) are both provided with tapered raceways.
3. According to claim 2, a new type of direct drive chain tightening device with a motor support integrated in a reducer is characterized in that: The outer ring of the first bearing (2-3) and the outer ring of the second bearing (2-6) are installed in the bearing hole of the bearing support (2-2), and the inner ring of the first bearing (2-3) and the inner ring of the second bearing (2-6) are installed on the transmission shaft (2-1).
4. According to claim 1, a novel direct-drive chain tightening device with a motor support integrated in a reducer is characterized in that: The first oil seal (2-4) and the second oil seal (2-5) are respectively installed between the first bearing (2-3) and the second bearing (2-6); the lip of the first oil seal (2-4) is arranged toward the reducer (1), and the lip of the second oil seal (2-5) is arranged toward the torque module (3).
5. According to claim 1, a novel direct-drive chain tightening device with a motor support integrated in a reducer is characterized in that: The end of the transmission shaft (2-1) is spline-connected to the rotor of the torque module (3).